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Finding the Fourth Proportional to 609,008.74, 840,419.50 and 337,060.40

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Solution

The fourth proportional to 609,008.74, 840,419.50 and 337,060.40 is: 465,136.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,008.74 : 840,419.50 = 337,060.40 : x
  2. Step 2: Convert to fraction form
    609,008.74/840,419.50 = 337,060.40/x
  3. Step 3: Cross multiply
    609,008.74x = 840,419.50 × 337,060.40
  4. Step 4: Simplify right side
    609,008.74x = 283,272,132,837.80
  5. Step 5: Solve for x
    x = 283,272,132,837.80/609,008.74
  6. Step 6: Final answer
    x = 465,136.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.